-/*
+/*
Unix SMB/CIFS implementation.
Samba internal messaging functions
Copyright (C) Andrew Tridgell 2004
-
+
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
-
+
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
-
+
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "lib/events/events.h"
#include "system/filesys.h"
#include "messaging/messaging.h"
-#include "lib/util/dlinklist.h"
+#include "../lib/util/dlinklist.h"
#include "lib/socket/socket.h"
#include "librpc/gen_ndr/ndr_irpc.h"
#include "lib/messaging/irpc.h"
-#include "db_wrap.h"
-#include "lib/util/unix_privs.h"
+#include "lib/tdb_wrap/tdb_wrap.h"
+#include "../lib/util/unix_privs.h"
#include "librpc/rpc/dcerpc.h"
-#include "lib/tdb/include/tdb.h"
-#include "lib/util/util_tdb.h"
-#include "lib/util/util_tdb.h"
+#include "../lib/tdb_compat/tdb_compat.h"
+#include "../lib/util/util_tdb.h"
#include "cluster/cluster.h"
+#include "../lib/util/tevent_ntstatus.h"
+#include "lib/param/param.h"
/* change the message version with any incompatible changes in the protocol */
-#define MESSAGING_VERSION 1
+#define IMESSAGING_VERSION 1
+
+/*
+ a pending irpc call
+*/
+struct irpc_request {
+ struct imessaging_context *msg_ctx;
+ int callid;
+ struct {
+ void (*handler)(struct irpc_request *irpc, struct irpc_message *m);
+ void *private_data;
+ } incoming;
+};
-struct messaging_context {
+struct imessaging_context {
struct server_id server_id;
struct socket_context *sock;
const char *base_path;
const char *path;
+ struct loadparm_context *lp_ctx;
struct dispatch_fn **dispatch;
uint32_t num_types;
struct idr_context *dispatch_tree;
- struct messaging_rec *pending;
- struct messaging_rec *retry_queue;
+ struct imessaging_rec *pending;
+ struct imessaging_rec *retry_queue;
struct irpc_list *irpc;
struct idr_context *idr;
const char **names;
struct timeval start_time;
- struct timed_event *retry_te;
+ struct tevent_timer *retry_te;
struct {
- struct event_context *ev;
- struct fd_event *fde;
+ struct tevent_context *ev;
+ struct tevent_fd *fde;
} event;
};
struct dispatch_fn {
struct dispatch_fn *next, *prev;
uint32_t msg_type;
- void *private;
+ void *private_data;
msg_callback_t fn;
};
/* an individual message */
-struct messaging_rec {
- struct messaging_rec *next, *prev;
- struct messaging_context *msg;
+struct imessaging_rec {
+ struct imessaging_rec *next, *prev;
+ struct imessaging_context *msg;
const char *path;
- struct messaging_header {
+ struct imessaging_header {
uint32_t version;
uint32_t msg_type;
struct server_id from;
};
-static void irpc_handler(struct messaging_context *, void *,
+static void irpc_handler(struct imessaging_context *, void *,
uint32_t, struct server_id, DATA_BLOB *);
/*
A useful function for testing the message system.
*/
-static void ping_message(struct messaging_context *msg, void *private,
+static void ping_message(struct imessaging_context *msg, void *private_data,
uint32_t msg_type, struct server_id src, DATA_BLOB *data)
{
- DEBUG(1,("INFO: Received PING message from server %u.%u [%.*s]\n",
- (uint_t)src.node, (uint_t)src.id, (int)data->length,
+ char *task_id = server_id_str(NULL, &src);
+ DEBUG(1,("INFO: Received PING message from server %s [%.*s]\n",
+ task_id, (int)data->length,
data->data?(const char *)data->data:""));
- messaging_send(msg, src, MSG_PONG, data);
+ talloc_free(task_id);
+ imessaging_send(msg, src, MSG_PONG, data);
}
/*
return uptime of messaging server via irpc
*/
-static NTSTATUS irpc_uptime(struct irpc_message *msg,
+static NTSTATUS irpc_uptime(struct irpc_message *msg,
struct irpc_uptime *r)
{
- struct messaging_context *ctx = talloc_get_type(msg->private, struct messaging_context);
+ struct imessaging_context *ctx = talloc_get_type(msg->private_data, struct imessaging_context);
*r->out.start_time = timeval_to_nttime(&ctx->start_time);
return NT_STATUS_OK;
}
-/*
+/*
return the path to a messaging socket
*/
-static char *messaging_path(struct messaging_context *msg, struct server_id server_id)
+static char *imessaging_path(struct imessaging_context *msg, struct server_id server_id)
{
- return talloc_asprintf(msg, "%s/msg.%u.%u", msg->base_path,
- (unsigned)server_id.node, (unsigned)server_id.id);
+ TALLOC_CTX *tmp_ctx = talloc_new(msg);
+ const char *id = server_id_str(tmp_ctx, &server_id);
+ char *s;
+ if (id == NULL) {
+ return NULL;
+ }
+ s = talloc_asprintf(msg, "%s/msg.%s", msg->base_path, id);
+ talloc_steal(s, tmp_ctx);
+ return s;
}
/*
per message. That allows a single messasging context to register
(for example) a debug handler for more than one piece of code
*/
-static void messaging_dispatch(struct messaging_context *msg, struct messaging_rec *rec)
+static void imessaging_dispatch(struct imessaging_context *msg, struct imessaging_rec *rec)
{
struct dispatch_fn *d, *next;
/* temporary IDs use an idtree, the rest use a array of pointers */
if (rec->header->msg_type >= MSG_TMP_BASE) {
- d = idr_find(msg->dispatch_tree, rec->header->msg_type);
+ d = (struct dispatch_fn *)idr_find(msg->dispatch_tree,
+ rec->header->msg_type);
} else if (rec->header->msg_type < msg->num_types) {
d = msg->dispatch[rec->header->msg_type];
} else {
next = d->next;
data.data = rec->packet.data + sizeof(*rec->header);
data.length = rec->header->length;
- d->fn(msg, d->private, d->msg_type, rec->header->from, &data);
+ d->fn(msg, d->private_data, d->msg_type, rec->header->from, &data);
}
rec->header->length = 0;
}
/*
handler for messages that arrive from other nodes in the cluster
*/
-static void cluster_message_handler(struct messaging_context *msg, DATA_BLOB packet)
+static void cluster_message_handler(struct imessaging_context *msg, DATA_BLOB packet)
{
- struct messaging_rec *rec;
+ struct imessaging_rec *rec;
- rec = talloc(msg, struct messaging_rec);
+ rec = talloc(msg, struct imessaging_rec);
if (rec == NULL) {
- smb_panic("Unable to allocate messaging_rec");
+ smb_panic("Unable to allocate imessaging_rec");
}
rec->msg = msg;
rec->path = msg->path;
- rec->header = (struct messaging_header *)packet.data;
+ rec->header = (struct imessaging_header *)packet.data;
rec->packet = packet;
rec->retries = 0;
if (packet.length != sizeof(*rec->header) + rec->header->length) {
- DEBUG(0,("messaging: bad message header size %d should be %d\n",
+ DEBUG(0,("messaging: bad message header size %d should be %d\n",
rec->header->length, (int)(packet.length - sizeof(*rec->header))));
talloc_free(rec);
return;
}
- messaging_dispatch(msg, rec);
+ imessaging_dispatch(msg, rec);
talloc_free(rec);
}
/*
try to send the message
*/
-static NTSTATUS try_send(struct messaging_rec *rec)
+static NTSTATUS try_send(struct imessaging_rec *rec)
{
- struct messaging_context *msg = rec->msg;
+ struct imessaging_context *msg = rec->msg;
size_t nsent;
void *priv;
NTSTATUS status;
/* rec->path is the path of the *other* socket, where we want
* this to end up */
- path = socket_address_from_strings(msg, msg->sock->backend_name,
+ path = socket_address_from_strings(msg, msg->sock->backend_name,
rec->path, 0);
if (!path) {
return NT_STATUS_NO_MEMORY;
/*
retry backed off messages
*/
-static void msg_retry_timer(struct event_context *ev, struct timed_event *te,
- struct timeval t, void *private)
+static void msg_retry_timer(struct tevent_context *ev, struct tevent_timer *te,
+ struct timeval t, void *private_data)
{
- struct messaging_context *msg = talloc_get_type(private,
- struct messaging_context);
+ struct imessaging_context *msg = talloc_get_type(private_data,
+ struct imessaging_context);
msg->retry_te = NULL;
/* put the messages back on the main queue */
while (msg->retry_queue) {
- struct messaging_rec *rec = msg->retry_queue;
+ struct imessaging_rec *rec = msg->retry_queue;
DLIST_REMOVE(msg->retry_queue, rec);
- DLIST_ADD_END(msg->pending, rec, struct messaging_rec *);
+ DLIST_ADD_END(msg->pending, rec, struct imessaging_rec *);
}
- EVENT_FD_WRITEABLE(msg->event.fde);
+ TEVENT_FD_WRITEABLE(msg->event.fde);
}
/*
handle a socket write event
*/
-static void messaging_send_handler(struct messaging_context *msg)
+static void imessaging_send_handler(struct imessaging_context *msg)
{
while (msg->pending) {
- struct messaging_rec *rec = msg->pending;
+ struct imessaging_rec *rec = msg->pending;
NTSTATUS status;
status = try_send(rec);
if (NT_STATUS_EQUAL(status, STATUS_MORE_ENTRIES)) {
/* we're getting continuous write errors -
backoff this record */
DLIST_REMOVE(msg->pending, rec);
- DLIST_ADD_END(msg->retry_queue, rec,
- struct messaging_rec *);
+ DLIST_ADD_END(msg->retry_queue, rec,
+ struct imessaging_rec *);
if (msg->retry_te == NULL) {
- msg->retry_te =
- event_add_timed(msg->event.ev, msg,
- timeval_current_ofs(1, 0),
+ msg->retry_te =
+ tevent_add_timer(msg->event.ev, msg,
+ timeval_current_ofs(1, 0),
msg_retry_timer, msg);
}
}
}
rec->retries = 0;
if (!NT_STATUS_IS_OK(status)) {
- DEBUG(1,("messaging: Lost message from %u to %u of type %u - %s\n",
- rec->header->from.id, rec->header->to.id, rec->header->msg_type,
+ TALLOC_CTX *tmp_ctx = talloc_new(msg);
+ DEBUG(1,("messaging: Lost message from %s to %s of type %u - %s\n",
+ server_id_str(tmp_ctx, &rec->header->from),
+ server_id_str(tmp_ctx, &rec->header->to),
+ rec->header->msg_type,
nt_errstr(status)));
+ talloc_free(tmp_ctx);
}
DLIST_REMOVE(msg->pending, rec);
talloc_free(rec);
}
if (msg->pending == NULL) {
- EVENT_FD_NOT_WRITEABLE(msg->event.fde);
+ TEVENT_FD_NOT_WRITEABLE(msg->event.fde);
}
}
/*
handle a new incoming packet
*/
-static void messaging_recv_handler(struct messaging_context *msg)
+static void imessaging_recv_handler(struct imessaging_context *msg)
{
- struct messaging_rec *rec;
+ struct imessaging_rec *rec;
NTSTATUS status;
DATA_BLOB packet;
size_t msize;
/* see how many bytes are in the next packet */
status = socket_pending(msg->sock, &msize);
if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0,("socket_pending failed in messaging - %s\n",
+ DEBUG(0,("socket_pending failed in messaging - %s\n",
nt_errstr(status)));
return;
}
-
+
packet = data_blob_talloc(msg, NULL, msize);
if (packet.data == NULL) {
/* assume this is temporary and retry */
return;
}
-
+
status = socket_recv(msg->sock, packet.data, msize, &msize);
if (!NT_STATUS_IS_OK(status)) {
data_blob_free(&packet);
return;
}
- rec = talloc(msg, struct messaging_rec);
+ rec = talloc(msg, struct imessaging_rec);
if (rec == NULL) {
- smb_panic("Unable to allocate messaging_rec");
+ smb_panic("Unable to allocate imessaging_rec");
}
talloc_steal(rec, packet.data);
rec->msg = msg;
rec->path = msg->path;
- rec->header = (struct messaging_header *)packet.data;
+ rec->header = (struct imessaging_header *)packet.data;
rec->packet = packet;
rec->retries = 0;
if (msize != sizeof(*rec->header) + rec->header->length) {
- DEBUG(0,("messaging: bad message header size %d should be %d\n",
+ DEBUG(0,("messaging: bad message header size %d should be %d\n",
rec->header->length, (int)(msize - sizeof(*rec->header))));
talloc_free(rec);
return;
}
- messaging_dispatch(msg, rec);
+ imessaging_dispatch(msg, rec);
talloc_free(rec);
}
/*
handle a socket event
*/
-static void messaging_handler(struct event_context *ev, struct fd_event *fde,
- uint16_t flags, void *private)
+static void imessaging_handler(struct tevent_context *ev, struct tevent_fd *fde,
+ uint16_t flags, void *private_data)
{
- struct messaging_context *msg = talloc_get_type(private,
- struct messaging_context);
- if (flags & EVENT_FD_WRITE) {
- messaging_send_handler(msg);
+ struct imessaging_context *msg = talloc_get_type(private_data,
+ struct imessaging_context);
+ if (flags & TEVENT_FD_WRITE) {
+ imessaging_send_handler(msg);
}
- if (flags & EVENT_FD_READ) {
- messaging_recv_handler(msg);
+ if (flags & TEVENT_FD_READ) {
+ imessaging_recv_handler(msg);
}
}
/*
Register a dispatch function for a particular message type.
*/
-NTSTATUS messaging_register(struct messaging_context *msg, void *private,
+NTSTATUS imessaging_register(struct imessaging_context *msg, void *private_data,
uint32_t msg_type, msg_callback_t fn)
{
struct dispatch_fn *d;
d = talloc_zero(msg->dispatch, struct dispatch_fn);
NT_STATUS_HAVE_NO_MEMORY(d);
d->msg_type = msg_type;
- d->private = private;
+ d->private_data = private_data;
d->fn = fn;
DLIST_ADD(msg->dispatch[msg_type], d);
register a temporary message handler. The msg_type is allocated
above MSG_TMP_BASE
*/
-NTSTATUS messaging_register_tmp(struct messaging_context *msg, void *private,
+NTSTATUS imessaging_register_tmp(struct imessaging_context *msg, void *private_data,
msg_callback_t fn, uint32_t *msg_type)
{
struct dispatch_fn *d;
d = talloc_zero(msg->dispatch, struct dispatch_fn);
NT_STATUS_HAVE_NO_MEMORY(d);
- d->private = private;
+ d->private_data = private_data;
d->fn = fn;
id = idr_get_new_above(msg->dispatch_tree, d, MSG_TMP_BASE, UINT16_MAX);
/*
De-register the function for a particular message type.
*/
-void messaging_deregister(struct messaging_context *msg, uint32_t msg_type, void *private)
+void imessaging_deregister(struct imessaging_context *msg, uint32_t msg_type, void *private_data)
{
struct dispatch_fn *d, *next;
if (msg_type >= msg->num_types) {
- d = idr_find(msg->dispatch_tree, msg_type);
+ d = (struct dispatch_fn *)idr_find(msg->dispatch_tree,
+ msg_type);
if (!d) return;
idr_remove(msg->dispatch_tree, msg_type);
talloc_free(d);
for (d = msg->dispatch[msg_type]; d; d = next) {
next = d->next;
- if (d->private == private) {
+ if (d->private_data == private_data) {
DLIST_REMOVE(msg->dispatch[msg_type], d);
talloc_free(d);
}
/*
Send a message to a particular server
*/
-NTSTATUS messaging_send(struct messaging_context *msg, struct server_id server,
- uint32_t msg_type, DATA_BLOB *data)
+NTSTATUS imessaging_send(struct imessaging_context *msg, struct server_id server,
+ uint32_t msg_type, const DATA_BLOB *data)
{
- struct messaging_rec *rec;
+ struct imessaging_rec *rec;
NTSTATUS status;
size_t dlength = data?data->length:0;
- rec = talloc(msg, struct messaging_rec);
+ rec = talloc(msg, struct imessaging_rec);
if (rec == NULL) {
return NT_STATUS_NO_MEMORY;
}
rec->retries = 0;
rec->msg = msg;
- rec->header = (struct messaging_header *)rec->packet.data;
- rec->header->version = MESSAGING_VERSION;
+ rec->header = (struct imessaging_header *)rec->packet.data;
+ /* zero padding */
+ ZERO_STRUCTP(rec->header);
+ rec->header->version = IMESSAGING_VERSION;
rec->header->msg_type = msg_type;
rec->header->from = msg->server_id;
rec->header->to = server;
rec->header->length = dlength;
if (dlength != 0) {
- memcpy(rec->packet.data + sizeof(*rec->header),
+ memcpy(rec->packet.data + sizeof(*rec->header),
data->data, dlength);
}
return status;
}
- rec->path = messaging_path(msg, server);
+ rec->path = imessaging_path(msg, server);
talloc_steal(rec, rec->path);
if (msg->pending != NULL) {
if (NT_STATUS_EQUAL(status, STATUS_MORE_ENTRIES)) {
if (msg->pending == NULL) {
- EVENT_FD_WRITEABLE(msg->event.fde);
+ TEVENT_FD_WRITEABLE(msg->event.fde);
}
- DLIST_ADD_END(msg->pending, rec, struct messaging_rec *);
+ DLIST_ADD_END(msg->pending, rec, struct imessaging_rec *);
return NT_STATUS_OK;
}
/*
Send a message to a particular server, with the message containing a single pointer
*/
-NTSTATUS messaging_send_ptr(struct messaging_context *msg, struct server_id server,
+NTSTATUS imessaging_send_ptr(struct imessaging_context *msg, struct server_id server,
uint32_t msg_type, void *ptr)
{
DATA_BLOB blob;
- blob.data = (void *)&ptr;
+ blob.data = (uint8_t *)&ptr;
blob.length = sizeof(void *);
- return messaging_send(msg, server, msg_type, &blob);
+ return imessaging_send(msg, server, msg_type, &blob);
}
/*
- destroy the messaging context
+ remove our messaging socket and database entry
*/
-static int messaging_destructor(struct messaging_context *msg)
+int imessaging_cleanup(struct imessaging_context *msg)
{
+ if (!msg) {
+ return 0;
+ }
+
+ DEBUG(5,("imessaging: cleaning up %s\n", msg->path));
unlink(msg->path);
while (msg->names && msg->names[0]) {
irpc_remove_name(msg, msg->names[0]);
/*
create the listening socket and setup the dispatcher
+
+ use temporary=true when you want a destructor to remove the
+ associated messaging socket and database entry on talloc free. Don't
+ use this in processes that may fork and a child may talloc free this
+ memory
*/
-struct messaging_context *messaging_init(TALLOC_CTX *mem_ctx,
- struct server_id server_id,
- struct event_context *ev)
+struct imessaging_context *imessaging_init(TALLOC_CTX *mem_ctx,
+ struct loadparm_context *lp_ctx,
+ struct server_id server_id,
+ struct tevent_context *ev,
+ bool auto_remove)
{
- struct messaging_context *msg;
+ struct imessaging_context *msg;
NTSTATUS status;
struct socket_address *path;
- char *dir;
+ bool ok;
+
+ if (ev == NULL) {
+ return NULL;
+ }
- msg = talloc_zero(mem_ctx, struct messaging_context);
+ msg = talloc_zero(mem_ctx, struct imessaging_context);
if (msg == NULL) {
return NULL;
}
return NULL;
}
- if (ev == NULL) {
- ev = event_context_init(msg);
+ /* create the messaging directory if needed */
+
+ msg->lp_ctx = talloc_reference(msg, lp_ctx);
+ if (!msg->lp_ctx) {
+ talloc_free(msg);
+ return NULL;
}
- /* create the messaging directory if needed */
- dir = smbd_tmp_path(msg, "messaging");
- mkdir(dir, 0700);
- talloc_free(dir);
+ msg->base_path = lpcfg_imessaging_path(msg, lp_ctx);
- msg->base_path = smbd_tmp_path(msg, "messaging");
- msg->path = messaging_path(msg, server_id);
+ ok = directory_create_or_exist_strict(msg->base_path, geteuid(), 0700);
+ if (!ok) {
+ talloc_free(msg);
+ return NULL;
+ }
+
+ msg->path = imessaging_path(msg, server_id);
msg->server_id = server_id;
msg->idr = idr_init(msg);
msg->dispatch_tree = idr_init(msg);
return NULL;
}
- /* by stealing here we ensure that the socket is cleaned up (and even
+ /* by stealing here we ensure that the socket is cleaned up (and even
deleted) on exit */
talloc_steal(msg, msg->sock);
- path = socket_address_from_strings(msg, msg->sock->backend_name,
+ path = socket_address_from_strings(msg, msg->sock->backend_name,
msg->path, 0);
if (!path) {
talloc_free(msg);
/* it needs to be non blocking for sends */
set_blocking(socket_get_fd(msg->sock), false);
- msg->event.ev = talloc_reference(msg, ev);
- msg->event.fde = event_add_fd(ev, msg, socket_get_fd(msg->sock),
- EVENT_FD_READ, messaging_handler, msg);
+ msg->event.ev = ev;
+ msg->event.fde = tevent_add_fd(ev, msg, socket_get_fd(msg->sock),
+ TEVENT_FD_READ, imessaging_handler, msg);
+ tevent_fd_set_auto_close(msg->event.fde);
- talloc_set_destructor(msg, messaging_destructor);
-
- messaging_register(msg, NULL, MSG_PING, ping_message);
- messaging_register(msg, NULL, MSG_IRPC, irpc_handler);
+ if (auto_remove) {
+ talloc_set_destructor(msg, imessaging_cleanup);
+ }
+
+ imessaging_register(msg, NULL, MSG_PING, ping_message);
+ imessaging_register(msg, NULL, MSG_IRPC, irpc_handler);
IRPC_REGISTER(msg, irpc, IRPC_UPTIME, irpc_uptime, msg);
return msg;
}
-/*
- A hack, for the short term until we get 'client only' messaging in place
+/*
+ A hack, for the short term until we get 'client only' messaging in place
*/
-struct messaging_context *messaging_client_init(TALLOC_CTX *mem_ctx,
- struct event_context *ev)
+struct imessaging_context *imessaging_client_init(TALLOC_CTX *mem_ctx,
+ struct loadparm_context *lp_ctx,
+ struct tevent_context *ev)
{
struct server_id id;
ZERO_STRUCT(id);
- id.id = random() % 0x10000000;
- return messaging_init(mem_ctx, id, ev);
+ id.pid = getpid();
+ id.task_id = generate_random();
+ id.vnn = NONCLUSTER_VNN;
+
+ /* This is because we are not in the s3 serverid database */
+ id.unique_id = SERVERID_UNIQUE_ID_NOT_TO_VERIFY;
+
+ return imessaging_init(mem_ctx, lp_ctx, id, ev, true);
}
/*
a list of registered irpc server functions
const struct ndr_interface_table *table;
int callnum;
irpc_function_t fn;
- void *private;
+ void *private_data;
};
/*
register a irpc server function
*/
-NTSTATUS irpc_register(struct messaging_context *msg_ctx,
- const struct ndr_interface_table *table,
- int callnum, irpc_function_t fn, void *private)
+NTSTATUS irpc_register(struct imessaging_context *msg_ctx,
+ const struct ndr_interface_table *table,
+ int callnum, irpc_function_t fn, void *private_data)
{
struct irpc_list *irpc;
irpc->table = table;
irpc->callnum = callnum;
irpc->fn = fn;
- irpc->private = private;
+ irpc->private_data = private_data;
irpc->uuid = irpc->table->syntax_id.uuid;
return NT_STATUS_OK;
/*
handle an incoming irpc reply message
*/
-static void irpc_handler_reply(struct messaging_context *msg_ctx, struct irpc_message *m)
+static void irpc_handler_reply(struct imessaging_context *msg_ctx, struct irpc_message *m)
{
struct irpc_request *irpc;
- irpc = idr_find(msg_ctx->idr, m->header.callid);
+ irpc = (struct irpc_request *)idr_find(msg_ctx->idr, m->header.callid);
if (irpc == NULL) return;
- /* parse the reply data */
- irpc->status = irpc->table->calls[irpc->callnum].ndr_pull(m->ndr, NDR_OUT, irpc->r);
- if (NT_STATUS_IS_OK(irpc->status)) {
- irpc->status = m->header.status;
- talloc_steal(irpc->mem_ctx, m);
- } else {
- talloc_steal(irpc, m);
- }
- irpc->done = true;
- if (irpc->async.fn) {
- irpc->async.fn(irpc);
- }
+ irpc->incoming.handler(irpc, m);
}
/*
{
struct ndr_push *push;
DATA_BLOB packet;
+ enum ndr_err_code ndr_err;
m->header.status = status;
}
m->header.flags |= IRPC_FLAG_REPLY;
+ m->header.creds.token= NULL;
/* construct the packet */
- status = ndr_push_irpc_header(push, NDR_SCALARS|NDR_BUFFERS, &m->header);
- if (!NT_STATUS_IS_OK(status)) goto failed;
+ ndr_err = ndr_push_irpc_header(push, NDR_SCALARS|NDR_BUFFERS, &m->header);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ status = ndr_map_error2ntstatus(ndr_err);
+ goto failed;
+ }
- status = m->irpc->table->calls[m->irpc->callnum].ndr_push(push, NDR_OUT, m->data);
- if (!NT_STATUS_IS_OK(status)) goto failed;
+ ndr_err = m->irpc->table->calls[m->irpc->callnum].ndr_push(push, NDR_OUT, m->data);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+ status = ndr_map_error2ntstatus(ndr_err);
+ goto failed;
+ }
/* send the reply message */
packet = ndr_push_blob(push);
- status = messaging_send(m->msg_ctx, m->from, MSG_IRPC, &packet);
+ status = imessaging_send(m->msg_ctx, m->from, MSG_IRPC, &packet);
if (!NT_STATUS_IS_OK(status)) goto failed;
failed:
/*
handle an incoming irpc request message
*/
-static void irpc_handler_request(struct messaging_context *msg_ctx,
+static void irpc_handler_request(struct imessaging_context *msg_ctx,
struct irpc_message *m)
{
struct irpc_list *i;
void *r;
- NTSTATUS status;
+ enum ndr_err_code ndr_err;
for (i=msg_ctx->irpc; i; i=i->next) {
if (GUID_equal(&i->uuid, &m->header.uuid) &&
r = talloc_zero_size(m->ndr, i->table->calls[m->header.callnum].struct_size);
if (r == NULL) goto failed;
+ m->ndr->flags |= LIBNDR_FLAG_REF_ALLOC;
+
/* parse the request data */
- status = i->table->calls[i->callnum].ndr_pull(m->ndr, NDR_IN, r);
- if (!NT_STATUS_IS_OK(status)) goto failed;
+ ndr_err = i->table->calls[i->callnum].ndr_pull(m->ndr, NDR_IN, r);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) goto failed;
/* make the call */
- m->private = i->private;
+ m->private_data= i->private_data;
m->defer_reply = false;
+ m->no_reply = false;
m->msg_ctx = msg_ctx;
m->irpc = i;
m->data = r;
m->header.status = i->fn(m, r);
+ if (m->no_reply) {
+ /* the server function won't ever be replying to this request */
+ talloc_free(m);
+ return;
+ }
+
if (m->defer_reply) {
/* the server function has asked to defer the reply to later */
talloc_steal(msg_ctx, m);
/*
handle an incoming irpc message
*/
-static void irpc_handler(struct messaging_context *msg_ctx, void *private,
+static void irpc_handler(struct imessaging_context *msg_ctx, void *private_data,
uint32_t msg_type, struct server_id src, DATA_BLOB *packet)
{
struct irpc_message *m;
- NTSTATUS status;
+ enum ndr_err_code ndr_err;
m = talloc(msg_ctx, struct irpc_message);
if (m == NULL) goto failed;
m->ndr->flags |= LIBNDR_FLAG_REF_ALLOC;
- status = ndr_pull_irpc_header(m->ndr, NDR_BUFFERS|NDR_SCALARS, &m->header);
- if (!NT_STATUS_IS_OK(status)) goto failed;
+ ndr_err = ndr_pull_irpc_header(m->ndr, NDR_BUFFERS|NDR_SCALARS, &m->header);
+ if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) goto failed;
if (m->header.flags & IRPC_FLAG_REPLY) {
irpc_handler_reply(msg_ctx, m);
irpc->callid = -1;
}
- if (irpc->reject_free) {
- return -1;
- }
return 0;
}
-/*
- timeout a irpc request
-*/
-static void irpc_timeout(struct event_context *ev, struct timed_event *te,
- struct timeval t, void *private)
-{
- struct irpc_request *irpc = talloc_get_type(private, struct irpc_request);
- irpc->status = NT_STATUS_IO_TIMEOUT;
- irpc->done = true;
- if (irpc->async.fn) {
- irpc->async.fn(irpc);
- }
-}
-
-
-/*
- make a irpc call - async send
-*/
-struct irpc_request *irpc_call_send(struct messaging_context *msg_ctx,
- struct server_id server_id,
- const struct ndr_interface_table *table,
- int callnum, void *r, TALLOC_CTX *ctx)
-{
- struct irpc_header header;
- struct ndr_push *ndr;
- NTSTATUS status;
- DATA_BLOB packet;
- struct irpc_request *irpc;
-
- irpc = talloc(msg_ctx, struct irpc_request);
- if (irpc == NULL) goto failed;
-
- irpc->msg_ctx = msg_ctx;
- irpc->table = table;
- irpc->callnum = callnum;
- irpc->callid = idr_get_new(msg_ctx->idr, irpc, UINT16_MAX);
- if (irpc->callid == -1) goto failed;
- irpc->r = r;
- irpc->done = false;
- irpc->async.fn = NULL;
- irpc->mem_ctx = ctx;
- irpc->reject_free = false;
-
- talloc_set_destructor(irpc, irpc_destructor);
-
- /* setup the header */
- header.uuid = table->syntax_id.uuid;
-
- header.if_version = table->syntax_id.if_version;
- header.callid = irpc->callid;
- header.callnum = callnum;
- header.flags = 0;
- header.status = NT_STATUS_OK;
-
- /* construct the irpc packet */
- ndr = ndr_push_init_ctx(irpc);
- if (ndr == NULL) goto failed;
-
- status = ndr_push_irpc_header(ndr, NDR_SCALARS|NDR_BUFFERS, &header);
- if (!NT_STATUS_IS_OK(status)) goto failed;
-
- status = table->calls[callnum].ndr_push(ndr, NDR_IN, r);
- if (!NT_STATUS_IS_OK(status)) goto failed;
-
- /* and send it */
- packet = ndr_push_blob(ndr);
- status = messaging_send(msg_ctx, server_id, MSG_IRPC, &packet);
- if (!NT_STATUS_IS_OK(status)) goto failed;
-
- event_add_timed(msg_ctx->event.ev, irpc,
- timeval_current_ofs(IRPC_CALL_TIMEOUT, 0),
- irpc_timeout, irpc);
-
- talloc_free(ndr);
- return irpc;
-
-failed:
- talloc_free(irpc);
- return NULL;
-}
-
-/*
- wait for a irpc reply
-*/
-NTSTATUS irpc_call_recv(struct irpc_request *irpc)
-{
- NTSTATUS status;
-
- NT_STATUS_HAVE_NO_MEMORY(irpc);
-
- irpc->reject_free = true;
-
- while (!irpc->done) {
- if (event_loop_once(irpc->msg_ctx->event.ev) != 0) {
- return NT_STATUS_CONNECTION_DISCONNECTED;
- }
- }
-
- irpc->reject_free = false;
-
- status = irpc->status;
- talloc_free(irpc);
- return status;
-}
-
-/*
- perform a synchronous irpc request
-*/
-NTSTATUS irpc_call(struct messaging_context *msg_ctx,
- struct server_id server_id,
- const struct ndr_interface_table *table,
- int callnum, void *r,
- TALLOC_CTX *mem_ctx)
-{
- struct irpc_request *irpc = irpc_call_send(msg_ctx, server_id,
- table, callnum, r, mem_ctx);
- return irpc_call_recv(irpc);
-}
-
/*
open the naming database
*/
-static struct tdb_wrap *irpc_namedb_open(struct messaging_context *msg_ctx)
+static struct tdb_wrap *irpc_namedb_open(struct imessaging_context *msg_ctx)
{
struct tdb_wrap *t;
char *path = talloc_asprintf(msg_ctx, "%s/names.tdb", msg_ctx->base_path);
if (path == NULL) {
return NULL;
}
- t = tdb_wrap_open(msg_ctx, path, 0, 0, O_RDWR|O_CREAT, 0660);
+ t = tdb_wrap_open(msg_ctx, path,
+ lpcfg_tdb_hash_size(msg_ctx->lp_ctx, path),
+ lpcfg_tdb_flags(msg_ctx->lp_ctx, 0),
+ O_RDWR|O_CREAT, 0660);
talloc_free(path);
return t;
}
-
+
/*
add a string name that this irpc server can be called on
*/
-NTSTATUS irpc_add_name(struct messaging_context *msg_ctx, const char *name)
+NTSTATUS irpc_add_name(struct imessaging_context *msg_ctx, const char *name)
{
struct tdb_wrap *t;
TDB_DATA rec;
/*
return a list of server ids for a server name
*/
-struct server_id *irpc_servers_byname(struct messaging_context *msg_ctx,
+struct server_id *irpc_servers_byname(struct imessaging_context *msg_ctx,
TALLOC_CTX *mem_ctx,
const char *name)
{
for (i=0;i<count;i++) {
ret[i] = ((struct server_id *)rec.dptr)[i];
}
- ret[i] = cluster_id(0);
+ server_id_set_disconnected(&ret[i]);
free(rec.dptr);
tdb_unlock_bystring(t->tdb, name);
talloc_free(t);
return ret;
}
+static int all_servers_func(struct tdb_context *tdb, TDB_DATA key, TDB_DATA data, void *state)
+{
+ struct irpc_name_records *name_records = talloc_get_type(state, struct irpc_name_records);
+ struct irpc_name_record *name_record;
+ int i;
+
+ name_records->names
+ = talloc_realloc(name_records, name_records->names,
+ struct irpc_name_record *, name_records->num_records+1);
+ if (!name_records->names) {
+ return -1;
+ }
+
+ name_records->names[name_records->num_records] = name_record
+ = talloc(name_records->names,
+ struct irpc_name_record);
+ if (!name_record) {
+ return -1;
+ }
+
+ name_records->num_records++;
+
+ name_record->name
+ = talloc_strndup(name_record,
+ (const char *)key.dptr, key.dsize);
+ if (!name_record->name) {
+ return -1;
+ }
+
+ name_record->count = data.dsize / sizeof(struct server_id);
+ name_record->ids = talloc_array(name_record,
+ struct server_id,
+ name_record->count);
+ if (name_record->ids == NULL) {
+ return -1;
+ }
+ for (i=0;i<name_record->count;i++) {
+ name_record->ids[i] = ((struct server_id *)data.dptr)[i];
+ }
+ return 0;
+}
+
+/*
+ return a list of server ids for a server name
+*/
+struct irpc_name_records *irpc_all_servers(struct imessaging_context *msg_ctx,
+ TALLOC_CTX *mem_ctx)
+{
+ struct tdb_wrap *t;
+ int ret;
+ struct irpc_name_records *name_records = talloc_zero(mem_ctx, struct irpc_name_records);
+ if (name_records == NULL) {
+ return NULL;
+ }
+
+ t = irpc_namedb_open(msg_ctx);
+ if (t == NULL) {
+ return NULL;
+ }
+
+ ret = tdb_traverse_read(t->tdb, all_servers_func, name_records);
+ if (ret == -1) {
+ talloc_free(t);
+ return NULL;
+ }
+
+ talloc_free(t);
+
+ return name_records;
+}
+
/*
remove a name from a messaging context
*/
-void irpc_remove_name(struct messaging_context *msg_ctx, const char *name)
+void irpc_remove_name(struct imessaging_context *msg_ctx, const char *name)
{
struct tdb_wrap *t;
TDB_DATA rec;
return;
}
rec = tdb_fetch_bystring(t->tdb, name);
+ if (rec.dptr == NULL) {
+ tdb_unlock_bystring(t->tdb, name);
+ talloc_free(t);
+ return;
+ }
count = rec.dsize / sizeof(struct server_id);
if (count == 0) {
+ free(rec.dptr);
tdb_unlock_bystring(t->tdb, name);
talloc_free(t);
return;
for (i=0;i<count;i++) {
if (cluster_id_equal(&ids[i], &msg_ctx->server_id)) {
if (i < count-1) {
- memmove(ids+i, ids+i+1,
+ memmove(ids+i, ids+i+1,
sizeof(struct server_id) * (count-(i+1)));
}
rec.dsize -= sizeof(struct server_id);
tdb_unlock_bystring(t->tdb, name);
talloc_free(t);
}
+
+struct server_id imessaging_get_server_id(struct imessaging_context *msg_ctx)
+{
+ return msg_ctx->server_id;
+}
+
+struct irpc_bh_state {
+ struct imessaging_context *msg_ctx;
+ struct server_id server_id;
+ const struct ndr_interface_table *table;
+ uint32_t timeout;
+ struct security_token *token;
+};
+
+static bool irpc_bh_is_connected(struct dcerpc_binding_handle *h)
+{
+ struct irpc_bh_state *hs = dcerpc_binding_handle_data(h,
+ struct irpc_bh_state);
+
+ if (!hs->msg_ctx) {
+ return false;
+ }
+
+ return true;
+}
+
+static uint32_t irpc_bh_set_timeout(struct dcerpc_binding_handle *h,
+ uint32_t timeout)
+{
+ struct irpc_bh_state *hs = dcerpc_binding_handle_data(h,
+ struct irpc_bh_state);
+ uint32_t old = hs->timeout;
+
+ hs->timeout = timeout;
+
+ return old;
+}
+
+struct irpc_bh_raw_call_state {
+ struct irpc_request *irpc;
+ uint32_t opnum;
+ DATA_BLOB in_data;
+ DATA_BLOB in_packet;
+ DATA_BLOB out_data;
+};
+
+static void irpc_bh_raw_call_incoming_handler(struct irpc_request *irpc,
+ struct irpc_message *m);
+
+static struct tevent_req *irpc_bh_raw_call_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct dcerpc_binding_handle *h,
+ const struct GUID *object,
+ uint32_t opnum,
+ uint32_t in_flags,
+ const uint8_t *in_data,
+ size_t in_length)
+{
+ struct irpc_bh_state *hs =
+ dcerpc_binding_handle_data(h,
+ struct irpc_bh_state);
+ struct tevent_req *req;
+ struct irpc_bh_raw_call_state *state;
+ bool ok;
+ struct irpc_header header;
+ struct ndr_push *ndr;
+ NTSTATUS status;
+ enum ndr_err_code ndr_err;
+
+ req = tevent_req_create(mem_ctx, &state,
+ struct irpc_bh_raw_call_state);
+ if (req == NULL) {
+ return NULL;
+ }
+ state->opnum = opnum;
+ state->in_data.data = discard_const_p(uint8_t, in_data);
+ state->in_data.length = in_length;
+
+ ok = irpc_bh_is_connected(h);
+ if (!ok) {
+ tevent_req_nterror(req, NT_STATUS_CONNECTION_DISCONNECTED);
+ return tevent_req_post(req, ev);
+ }
+
+ state->irpc = talloc_zero(state, struct irpc_request);
+ if (tevent_req_nomem(state->irpc, req)) {
+ return tevent_req_post(req, ev);
+ }
+
+ state->irpc->msg_ctx = hs->msg_ctx;
+ state->irpc->callid = idr_get_new(hs->msg_ctx->idr,
+ state->irpc, UINT16_MAX);
+ if (state->irpc->callid == -1) {
+ tevent_req_nterror(req, NT_STATUS_INSUFFICIENT_RESOURCES);
+ return tevent_req_post(req, ev);
+ }
+ state->irpc->incoming.handler = irpc_bh_raw_call_incoming_handler;
+ state->irpc->incoming.private_data = req;
+
+ talloc_set_destructor(state->irpc, irpc_destructor);
+
+ /* setup the header */
+ header.uuid = hs->table->syntax_id.uuid;
+
+ header.if_version = hs->table->syntax_id.if_version;
+ header.callid = state->irpc->callid;
+ header.callnum = state->opnum;
+ header.flags = 0;
+ header.status = NT_STATUS_OK;
+ header.creds.token= hs->token;
+
+ /* construct the irpc packet */
+ ndr = ndr_push_init_ctx(state->irpc);
+ if (tevent_req_nomem(ndr, req)) {
+ return tevent_req_post(req, ev);
+ }
+
+ ndr_err = ndr_push_irpc_header(ndr, NDR_SCALARS|NDR_BUFFERS, &header);
+ status = ndr_map_error2ntstatus(ndr_err);
+ if (!NT_STATUS_IS_OK(status)) {
+ tevent_req_nterror(req, status);
+ return tevent_req_post(req, ev);
+ }
+
+ ndr_err = ndr_push_bytes(ndr, in_data, in_length);
+ status = ndr_map_error2ntstatus(ndr_err);
+ if (!NT_STATUS_IS_OK(status)) {
+ tevent_req_nterror(req, status);
+ return tevent_req_post(req, ev);
+ }
+
+ /* and send it */
+ state->in_packet = ndr_push_blob(ndr);
+ status = imessaging_send(hs->msg_ctx, hs->server_id,
+ MSG_IRPC, &state->in_packet);
+ if (!NT_STATUS_IS_OK(status)) {
+ tevent_req_nterror(req, status);
+ return tevent_req_post(req, ev);
+ }
+
+ if (hs->timeout != IRPC_CALL_TIMEOUT_INF) {
+ /* set timeout-callback in case caller wants that */
+ ok = tevent_req_set_endtime(req, ev, timeval_current_ofs(hs->timeout, 0));
+ if (!ok) {
+ return tevent_req_post(req, ev);
+ }
+ }
+
+ return req;
+}
+
+static void irpc_bh_raw_call_incoming_handler(struct irpc_request *irpc,
+ struct irpc_message *m)
+{
+ struct tevent_req *req =
+ talloc_get_type_abort(irpc->incoming.private_data,
+ struct tevent_req);
+ struct irpc_bh_raw_call_state *state =
+ tevent_req_data(req,
+ struct irpc_bh_raw_call_state);
+
+ talloc_steal(state, m);
+
+ if (!NT_STATUS_IS_OK(m->header.status)) {
+ tevent_req_nterror(req, m->header.status);
+ return;
+ }
+
+ state->out_data = data_blob_talloc(state,
+ m->ndr->data + m->ndr->offset,
+ m->ndr->data_size - m->ndr->offset);
+ if ((m->ndr->data_size - m->ndr->offset) > 0 && !state->out_data.data) {
+ tevent_req_oom(req);
+ return;
+ }
+
+ tevent_req_done(req);
+}
+
+static NTSTATUS irpc_bh_raw_call_recv(struct tevent_req *req,
+ TALLOC_CTX *mem_ctx,
+ uint8_t **out_data,
+ size_t *out_length,
+ uint32_t *out_flags)
+{
+ struct irpc_bh_raw_call_state *state =
+ tevent_req_data(req,
+ struct irpc_bh_raw_call_state);
+ NTSTATUS status;
+
+ if (tevent_req_is_nterror(req, &status)) {
+ tevent_req_received(req);
+ return status;
+ }
+
+ *out_data = talloc_move(mem_ctx, &state->out_data.data);
+ *out_length = state->out_data.length;
+ *out_flags = 0;
+ tevent_req_received(req);
+ return NT_STATUS_OK;
+}
+
+struct irpc_bh_disconnect_state {
+ uint8_t _dummy;
+};
+
+static struct tevent_req *irpc_bh_disconnect_send(TALLOC_CTX *mem_ctx,
+ struct tevent_context *ev,
+ struct dcerpc_binding_handle *h)
+{
+ struct irpc_bh_state *hs = dcerpc_binding_handle_data(h,
+ struct irpc_bh_state);
+ struct tevent_req *req;
+ struct irpc_bh_disconnect_state *state;
+ bool ok;
+
+ req = tevent_req_create(mem_ctx, &state,
+ struct irpc_bh_disconnect_state);
+ if (req == NULL) {
+ return NULL;
+ }
+
+ ok = irpc_bh_is_connected(h);
+ if (!ok) {
+ tevent_req_nterror(req, NT_STATUS_CONNECTION_DISCONNECTED);
+ return tevent_req_post(req, ev);
+ }
+
+ hs->msg_ctx = NULL;
+
+ tevent_req_done(req);
+ return tevent_req_post(req, ev);
+}
+
+static NTSTATUS irpc_bh_disconnect_recv(struct tevent_req *req)
+{
+ NTSTATUS status;
+
+ if (tevent_req_is_nterror(req, &status)) {
+ tevent_req_received(req);
+ return status;
+ }
+
+ tevent_req_received(req);
+ return NT_STATUS_OK;
+}
+
+static bool irpc_bh_ref_alloc(struct dcerpc_binding_handle *h)
+{
+ return true;
+}
+
+static const struct dcerpc_binding_handle_ops irpc_bh_ops = {
+ .name = "wbint",
+ .is_connected = irpc_bh_is_connected,
+ .set_timeout = irpc_bh_set_timeout,
+ .raw_call_send = irpc_bh_raw_call_send,
+ .raw_call_recv = irpc_bh_raw_call_recv,
+ .disconnect_send = irpc_bh_disconnect_send,
+ .disconnect_recv = irpc_bh_disconnect_recv,
+
+ .ref_alloc = irpc_bh_ref_alloc,
+};
+
+/* initialise a irpc binding handle */
+struct dcerpc_binding_handle *irpc_binding_handle(TALLOC_CTX *mem_ctx,
+ struct imessaging_context *msg_ctx,
+ struct server_id server_id,
+ const struct ndr_interface_table *table)
+{
+ struct dcerpc_binding_handle *h;
+ struct irpc_bh_state *hs;
+
+ h = dcerpc_binding_handle_create(mem_ctx,
+ &irpc_bh_ops,
+ NULL,
+ table,
+ &hs,
+ struct irpc_bh_state,
+ __location__);
+ if (h == NULL) {
+ return NULL;
+ }
+ hs->msg_ctx = msg_ctx;
+ hs->server_id = server_id;
+ hs->table = table;
+ hs->timeout = IRPC_CALL_TIMEOUT;
+
+ dcerpc_binding_handle_set_sync_ev(h, msg_ctx->event.ev);
+
+ return h;
+}
+
+struct dcerpc_binding_handle *irpc_binding_handle_by_name(TALLOC_CTX *mem_ctx,
+ struct imessaging_context *msg_ctx,
+ const char *dest_task,
+ const struct ndr_interface_table *table)
+{
+ struct dcerpc_binding_handle *h;
+ struct server_id *sids;
+ struct server_id sid;
+
+ /* find the server task */
+ sids = irpc_servers_byname(msg_ctx, mem_ctx, dest_task);
+ if (sids == NULL) {
+ errno = EADDRNOTAVAIL;
+ return NULL;
+ }
+ if (server_id_is_disconnected(&sids[0])) {
+ talloc_free(sids);
+ errno = EADDRNOTAVAIL;
+ return NULL;
+ }
+ sid = sids[0];
+ talloc_free(sids);
+
+ h = irpc_binding_handle(mem_ctx, msg_ctx,
+ sid, table);
+ if (h == NULL) {
+ return NULL;
+ }
+
+ return h;
+}
+
+void irpc_binding_handle_add_security_token(struct dcerpc_binding_handle *h,
+ struct security_token *token)
+{
+ struct irpc_bh_state *hs =
+ dcerpc_binding_handle_data(h,
+ struct irpc_bh_state);
+
+ hs->token = token;
+}
git.samba.org / kai / samba-autobuild / .git / blobdiff